Does hypnosis ever actually work?

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Devin Terhune |

TED-Ed

• February 2026

In the 19th century, Scottish surgeon James Braid revolutionized the field of hypnotism, transitioning the practice towards inducing a sleep-like state. Today, hypnosis is used in psychiatry as a helpful medical tool, yet it still holds an entrancing place in popular fantasy. So, is there any truth to what it can accomplish? Or is it just illusion? Devin Terhune explores the power of suggestion. [Directed by Leah Putnam, narrated by Addison Anderson, music by Stephen LaRosa, Wonder Boy Audio].